Management of growing teratoma syndrome (GTS): Results of the German Testicular Cancer Study Group.
2018
566Background: Growing teratoma syndrome (GTS) is an infrequent clinical phenomenon constituting only about 2 to 8% of all testis cancer patients. Data in the literature on the therapy of GTS are sparse, reflecting the rarity of the disease. The objective of was to determine the diagnostic, surgical and oncological outcome of patients with GTS treated in the 21st century. Methods: Between 01/2000 and 01/2010 post-chemotherapeutic retroperitoneal lymph node dissections (PCRLND) were performed in 296 patients with advanced NSGCT. We analysed the peri- and postoperative outcome of 16 patients (5.4%) that fulfilled the criteria of a GTS: enlarging metastatic mass in the retroperitoneum or visceral organs during systemic chemotherapy with normalized or decreasing tumour markers. Results: Mean patient age was 31 years (17-57). Initially, all patients had NSGCT with a good or intermediate prognosis according to IGCCCG; one patient had a poor prognosis. In all cases the primary tumour predominantly contained matu...
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